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题库 / Prep2007E2-SC-74
Thirteen states from all regions of the country announced a plan to impose new controls on pollution from truck and bus engines in that they will jointly adopt emission limits that would be far stricter than the federal rules.
to impose new controls on pollution from truck and bus engines in that they will jointly adopt
to impose new controls on truck and bus engines' pollution by the joint adoption of
to impose new controls on pollution from truck and bus engines by jointly adopting
for imposing new controls on pollution from truck and bus engines, and jointly adopting
for imposing new controls on truck and bus engine pollution in the joint adoption of
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Ron：
both of them are idiomatically legitimate; they just mean different things.
a plan TO DO X means that people now have the intention of doing X, whereas before they did not.
a plan FOR DOING X means a plan for how to actually execute this action; usually, this construction implies that the intention was already there, but that the plan of execution is new.
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